Engineering Wonders of the World
Volume III

Forfatter: Archibald Williams

År: 1945

Serie: Engineering Wonders of the World

Forlag: Thomas Nelson and Sons

Sted: London, Edinburgh, Dublin and New York

Sider: 407

UDK: 600 eng- gl

With 424 Illustrations, Maps, and Diagrams

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Side af 434 Forrige Næste
THE KINLOCHLEVEN ALUMINIUM WORKS. 275 The dam has formed a lake over seven miles long, and having at high-water level a capa- . city of 3,300,000,000 cubic feet. I he Reservoir. _ , Three small lochs at slightly different elevations have been swallowed up by this great sheet of water. The reservoir is fed by the 20 feet long each. They rest on concrete pedestals, and at every bend, whether in the vertical or the horizontal plane, are attached to massive concrete anchorages. The total weight of the metal in the six lines exceeds 6,000 tons. At the sta- annual rain- fall of about 100 inches on a catchment area of be- tween 55 and 60 square miles, so that there is little risk of the water ever running short, even if the factory is kept at full pres- sure. At the dam commences a conduit of re- inforced con- crete, 8 feet square in cross-section. This leads th© water 3| miles along the side of the valley, PIPE TRACK AS SEEN FROM NEAR THE BOTTOM ENI). Observe the massive anchorages at the angles. tion end each pipe line com- mu n i c a t e s with two “ bus ” pipes, both of which are connected to all the water tur- bines. This arrangement permits the inspection and repair of either bus pipe and any one of the pipe lines. The form of joint used is illustrated by the accom- panying dia- gram. Lead caulking of the ordinary type would on a gradient of 1 in 1,000, to a penstock not be suit- able for pipes subjected to chamber situated 965 feet above sea-level. From the penstock chamber the water passes such high pressures as these have to bear— over 400 lbs. to the square inch at the station The Aqueduct. through six — there will be eight eventually—parallel lines of 39-inch pipes to the generating station, 11 miles from and 922 feet lower vertically than the end of the conduit. The pipes, made of solid welded steel, are end—and exposed to the open „ „„ . . , Pipe Joints, air. Ine mun joint em- ployed is made water-tight with a packing of rope forced into the space between the spigot of the splayed end of the socket by the projecting lip of a collar (A), which